Numerical Study of Solid Core Photonic Crystal Fibres with Endlessly Single Mode

2018 ◽  
Vol 31 (3) ◽  
pp. 33
Author(s):  
Nadia Fateh Muhammed ◽  
Aseel Ibrahim ◽  
Shehab Ahmad Kahdum
Keyword(s):  
Finite Element Method ◽  
Photonic Crystal ◽  
Numerical Study ◽  
Single Mode ◽  
Solid Core ◽  
Hole Size ◽  
The Finite Element Method ◽  
Photonic Crystal Fibre ◽  
Photonic Crystal Fibres ◽  
Air Hole

       In this work, a solid core photonic crystal fibre (SC-PCF) has been designed with endlessly single mode of which both centerd core and holes in the cladding are organized by circles. The designed SC-PCF has a single solid centerd core which is ringed by a six rings hexagonal cladding. The computation of  SC-PCF is  achieved by using the finite element method (FEM) with perfectly matched layer (PML) boundary condition. All the designed factors like dimensions and distance of both core and cladding areas have varied with an optimized structure. After ending the numerical calculation, the results shows that there are a link between the air hols in the cladding ,  and the different normalized air hole size.

Stress Birefringence in Photonic Crystal Fibers Used in a Novel Field Installable LC Type Optical Connector

2007 ◽  
Vol 364-366 ◽  
pp. 404-407
Author(s):  
Samuel I En Lin
Keyword(s):  
Photonic Crystal ◽  
Light Transmission ◽  
Photonic Crystal Fibers ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Hole Size ◽  
Finite Element Program ◽  
Wide Range ◽  
Crystal Fibers ◽  
Air Hole

Photonic crystal fibers (PCFs) have recently attracted a great deal of interest because of their unique characteristics and many controllable features. They include a wide range of single mode operation, highly birefringent characteristics (~10-3), high-power light transmission, etc. The field-installable LC connectors tend to be of the larger connector types in the fiber-to-the-home (FTTH) distribution units. In these designs, fibers are clamped inside a splice assembly and are stressed within the connector. In this research, we first developed a novel cam-type mechanism for field-use LC connector. The fiber stress was analyzed via a commercial available finite element program. The stress birefringence distributions of single mode fiber and air-silica based PCFs were calculated by stress photoelastic effect. We further studied the effect of air-hole size on the stressinduced birefringence of PCFs. The results indicate that stress-induced birefringence decreases as air-hole size increase. On the other hand, the birefringence increases as applied clamping force increases on the single mode fiber.

Numerical analysis of photonic crystal fibre with high birefringence and high nonlinearity

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Patrick Atsu Agbemabiese ◽  
Emmanuel Kofi Akowuah
Keyword(s):  
Finite Element Method ◽  
Boundary Condition ◽  
Finite Element ◽  
Photonic Crystal ◽  
Numerical Analysis ◽  
Chromatic Dispersion ◽  
Confinement Loss ◽  
Photonic Crystal Fibre ◽  
High Birefringence ◽  
Air Hole

AbstractA four-ring microstructure photonic crystal fibre with a descending air hole ring cladding is presented. Numerical analysis of the structure is done using full vectorial finite element method with perfectly matched layer (PML) boundary condition. It is demonstrated that it is possible to achieve at 1.55 µm confinement loss of 2.767 × 10−5 dB/m, birefringence of 0.00346 and a nonlinear co-efficient of 41.77 km−1 W−1. Also, chromatic dispersion realised suggests a tuneable zero dispersion at 0.9–1.1 µm wavelength range.

scholarly journals Dirac-vortex topological photonic crystal fibre

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Hao Lin ◽  
Ling Lu
Keyword(s):  
Photonic Crystal ◽  
Cross Section ◽  
Single Mode ◽  
Winding Number ◽  
Single Vortex ◽  
Defect Modes ◽  
Photonic Crystal Fibre ◽  
Photonic Crystal Fibres ◽  
Vortex Phase ◽  
The Core

AbstractThe success of photonic crystal fibres relies largely on the endless variety of two-dimensional photonic crystals in the cross-section. Here, we propose a topological bandgap fibre whose bandgaps along in-plane directions are opened by generalised Kekulé modulation of a Dirac lattice with a vortex phase. Then, the existence of mid-gap defect modes is guaranteed to guide light at the core of this Dirac-vortex fibre, where the number of guiding modes equals the winding number of the spatial vortex. The single-vortex design provides a single-polarisation single-mode for a bandwidth as large as one octave.

Dispersion management in soft glass all-solid photonic crystal fibres

2012 ◽  
Vol 20 (3) ◽  
Author(s):  
R. Buczynski ◽  
J. Pniewski ◽  
D. Pysz ◽  
R. Stepien ◽  
R. Kasztelanic ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Nonlinear Coefficient ◽  
High Refractive Index ◽  
Supercontinuum Generation ◽  
Solid Core ◽  
Dispersion Management ◽  
Photonic Crystal Fibre ◽  
Photonic Crystal Fibres ◽  
Index Contrast ◽  
Management Capabilities

AbstractThe development of all-solid photonic crystal fibres for nonlinear optics is an alternative approach to air-glass solid core photonic crystal fibres. The use of soft glasses ensures a high refractive index contrast (> 0.1) and a high nonlinear coefficient of the fibres. We report on the dispersion management capabilities in all-solid photonic crystal fibres taking into account four thermally matched glasses which can be jointly processed using the stack-and-draw fibre technique. We present structures with over 450 nm broadband flat normal dispersion and ultra-flat near zero anomalous dispersion below 5 ps/nm/km over 300 nm dedicated to supercontinuum generation with 1540 nm laser sources. The development of an all-solid photonic crystal fibre made of F2 and NC21 glasses is presented. The fibre is used to demonstrate supercontinuum generation in the range of 730–870 nm (150 nm) with flatness below 5 dB.

scholarly journals Stress Analysis of Polarization Maintaining Optical Fibers by the Finite Element Method

1970 ◽  
Vol 1 (1) ◽  
Author(s):  
M. H. Aly A. S. Farahat, M. S. Helmi and M. Farhoud
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Optical Fibers ◽  
Radial Distance ◽  
Single Mode ◽  
The Finite Element Method ◽  
Modal Birefringence ◽  
Polarization Maintaining ◽  
External Forces ◽  
Element Method

Stress-induced birefringence in single mode polarization maintaining optical fibers has been investigated using the finite element method. The modal birefringence caused by external forces in the Panda and the Side Tunnel fibers are calculated. It is found that the modal birefringence is directly proportional to the radial distance from the fiber center. As expected, the modal birefringence vanishes with the variation in the magnitude of the applied external loads.Key Words: Birefringence, Polarization, Panda Fiber, Side-Pit Fiber, Finite Element Method.

scholarly journals Small-core photonic crystal fibres with weakly disordered air-hole claddings

2003 ◽  
Vol 6 (2) ◽  
pp. 221-223 ◽  
Author(s):  
Niels Asger Mortensen ◽  
Martin D Nielsen ◽  
Jacob Riis Folkenberg ◽  
Kim P Hansen ◽  
Jesper Lægsgaard
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystal Fibres ◽  
Small Core ◽  
Air Hole

Empirical evaluation of propagation of LP 01 and LP 02 modes over solid-core photonic crystal fibre

Laser Physics ◽  
2018 ◽  
Vol 28 (10) ◽  
pp. 105106 ◽  
Author(s):  
Sushank Chaudhary ◽  
Xuan Tang ◽  
Bangjiang Lin ◽  
Xian Wei
Keyword(s):  
Photonic Crystal ◽  
Empirical Evaluation ◽  
Solid Core ◽  
Photonic Crystal Fibre
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